Yes, the popular 6146 tube is still widely used in many amateur radio equipment today. However some radio amateurs might not be familiar with the different types of 6146 tubes. New radio amateurs might find the description of the various types interesting and useful for future reference.
6146 - The original design with a plate dissipation of 25 Watt.
6146W - A rugged version of the 6146.
6146A - The first generation of improved 6146 design, also with a plate dissipation of 25
watt.
6146B - A significantly improved tube design that offers 35 watt plate dissipation as well as
an improved heater design that allow much cooler operation. The 6146B was
designed specifically for SSB service and was used as a workhorse in many CW
and SSB radio's.
Remember if you must use a 6146, 6146A or 6146W adjust your radio's final amplifier section so that the maximum plate dissipation rating is not exceeded.
Further reading compliments of the Antique Wireless Association of Southern Africa. The 6146 Family of Tubes by Glen E. Zook, K9STH
